libstdc++
stringfwd.h
Go to the documentation of this file.
1 // String support -*- C++ -*-
2 
3 // Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
4 // Free Software Foundation, Inc.
5 //
6 // This file is part of the GNU ISO C++ Library. This library is free
7 // software; you can redistribute it and/or modify it under the
8 // terms of the GNU General Public License as published by the
9 // Free Software Foundation; either version 3, or (at your option)
10 // any later version.
11 
12 // This library is distributed in the hope that it will be useful,
13 // but WITHOUT ANY WARRANTY; without even the implied warranty of
14 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 // GNU General Public License for more details.
16 
17 // Under Section 7 of GPL version 3, you are granted additional
18 // permissions described in the GCC Runtime Library Exception, version
19 // 3.1, as published by the Free Software Foundation.
20 
21 // You should have received a copy of the GNU General Public License and
22 // a copy of the GCC Runtime Library Exception along with this program;
23 // see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
24 // <http://www.gnu.org/licenses/>.
25 
26 /** @file stringfwd.h
27  * This is an internal header file, included by other library headers.
28  * You should not attempt to use it directly.
29  */
30 
31 //
32 // ISO C++ 14882: 21 Strings library
33 //
34 
35 #ifndef _STRINGFWD_H
36 #define _STRINGFWD_H 1
37 
38 #pragma GCC system_header
39 
40 #include <bits/c++config.h>
41 
42 _GLIBCXX_BEGIN_NAMESPACE(std)
43 
44  template<typename _Alloc>
45  class allocator;
46 
47  template<class _CharT>
48  struct char_traits;
49 
50  template<typename _CharT, typename _Traits = char_traits<_CharT>,
51  typename _Alloc = allocator<_CharT> >
52  class basic_string;
53 
54  template<> struct char_traits<char>;
55 
56  typedef basic_string<char> string;
57 
58 #ifdef _GLIBCXX_USE_WCHAR_T
59  template<> struct char_traits<wchar_t>;
60 
61  typedef basic_string<wchar_t> wstring;
62 #endif
63 
64 #if (defined(__GXX_EXPERIMENTAL_CXX0X__) \
65  && defined(_GLIBCXX_USE_C99_STDINT_TR1))
66 
67  template<> struct char_traits<char16_t>;
68  template<> struct char_traits<char32_t>;
69 
70  typedef basic_string<char16_t> u16string;
71  typedef basic_string<char32_t> u32string;
72 
73 #endif
74 
75 _GLIBCXX_END_NAMESPACE
76 
77 #endif // _STRINGFWD_H
ISO C++ entities toplevel namespace is std.